Have you heard of "The Legend of the Dogwood"?
Look at a dogwood flower: each delicate white or pink blossom of the dogwood tree is in the form of a cross – two long and two short petals.
Upon even closer observation, you'll see on the outer edge of each petal small holes resembling nail prints. The tips of the petals are rusty on one side and brown-red on the other. It is not hard to imagine the holes represent the place where spikes pierced the hands and feet of Our Lord on the Cross.
Finally, in the center of the flower there is a green cluster that recalls the crown of thorns...thus a legend was born: